Transpiration Experiment Worksheet

Science experiments lesson 15: How a plant drinks and gives out water · Set 6 · 40 questions

What you do (Roots in, leaves out): 1. Water the potted plant well. 2. Slip a clear plastic bag over a leafy branch. 3. Close it gently with a rubber band — not too tight. 4. Leave it in the sun for a few hours, then look for drops.

1. 1.📘 Leaves have tiny holes that let out water vapour. What are they called? (a) veins (b) roots (c) petals (d) stomata
2. 2.🧺 Which of these is needed for the leafy bag test? (a) sunlight (b) a mirror (c) turmeric powder (d) a battery cell
3. 3.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? Which of these is the one thing we change? (a) sun or shade (b) the time we wait (c) the kind of plant (d) the size of the plant
4. 4.🔮 Predict: you tie a bag on a branch with no leaves. Will it collect much water? (a) much more water (b) much less water (c) it fills with soil (d) exactly the same
5. 5.🧺 Do we need sunlight for the leafy bag test? (a) needed (b) not needed
6. 6.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? Which of these is what we measure? (a) amount of water drops (b) the same kind of bag (c) sun or shade (d) the size of the plant
7. 7.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? What do we do with “amount of water drops”? (a) we measure it (b) we change it (c) we keep it the same
8. 8.🔮 Predict: which gives more drops in the bag — a hot sunny day or a cool cloudy day? (a) the cool cloudy day (b) both the same (c) the hot sunny day (d) neither of them
9. 9.True or false: a magnet is needed for the leafy bag test. (a) True (b) False
10. 10.🧺 Which of these is needed for the leafy bag test? (a) a magnet (b) a battery cell (c) vinegar (d) a few hours
11. 11.🛟 Why must a plastic bag never go over anyone’s head? (a) it changes colour (b) it is too big (c) it gets wet (d) it can block breathing
12. 12.🧺 Do we need a battery cell for the leafy bag test? (a) needed (b) not needed
13. 13.🪴 Which part of a plant does this job: give out water vapour? (a) roots (b) stem (c) leaves (d) flower
14. 14.🛟 How should the plastic bag be tied around the branch? (a) as tight as possible (b) with sharp wire (c) with a hot glue gun (d) gently, not too tight
15. 15.True or false: give out water vapour is a job of the roots. (a) True (b) False
16. 16.🪴 Which part of a plant does this job: carry water upward? (a) roots (b) flower (c) leaves (d) stem
17. 17.🔍 What do you see inside the plastic bag after a few hours in the sun? (a) tiny water drops (b) salt crystals (c) nothing at all (d) tiny insects
18. 18.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? What do we do with “the size of the plant”? (a) we measure it (b) we change it (c) we keep it the same
19. 19.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? What do we do with “the same kind of bag”? (a) we keep it the same (b) we change it (c) we measure it
20. 20.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a few hours (b) sunlight (c) yeast (d) a rubber band
21. 21.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a few hours (b) sunlight (c) a battery cell (d) a rubber band
22. 22.🧺 Do we need a potted plant for the leafy bag test? (a) not needed (b) needed
23. 23.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? What do we do with “the time we wait”? (a) we keep it the same (b) we measure it (c) we change it
24. 24.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? True or false: sun or shade is the one thing we change. (a) False (b) True
25. 25.🪴 Which of these is a job of the leaves? (a) hold the plant in soil (b) take in water from soil (c) give out water vapour (d) hold up the leaves
26. 26.🔮 Predict: a plant gets no water for many days in summer. What happens? (a) it wilts and droops (b) it flowers more (c) it turns blue (d) it grows faster
27. 27.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) vinegar (b) a potted plant (c) sunlight (d) a few hours
28. 28.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) sunlight (b) a magnet (c) a potted plant (d) a clear plastic bag
29. 29.🧺 Do we need a rubber band for the leafy bag test? (a) not needed (b) needed
30. 30.True or false: carry water upward is a job of the leaves. (a) True (b) False
31. 31.🪴 Where did the water inside the bag come from? (a) the rain (b) the plastic (c) the leaves (d) the rubber band
32. 32.🧺 Do we need yeast for the leafy bag test? (a) needed (b) not needed
33. 33.🧺 Do we need a clear plastic bag for the leafy bag test? (a) not needed (b) needed
34. 34.🪴 Which part of a plant does this job: make food in sunlight? (a) roots (b) leaves (c) stem (d) flower
35. 35.🪴 Which of these is a job of the roots? (a) take in water from soil (b) give out water vapour (c) make seeds (d) make food in sunlight
36. 36.🧺 Which of these is not needed for the leafy bag test? (a) sunlight (b) a few hours (c) a potted plant (d) a magnet
37. 37.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) sunlight (b) a mirror (c) a few hours (d) a rubber band
38. 38.🪴 Which part of a plant does this job: hold the plant in soil? (a) leaves (b) stem (c) flower (d) roots
39. 39.🧺 Which of these is not needed for the leafy bag test? (a) a rubber band (b) a potted plant (c) vinegar (d) a clear plastic bag
40. 40.True or false: carry water upward is a job of the stem. (a) True (b) False

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